http://bugs.winehq.org/show_bug.cgi?id=14911
--- Comment #6 from Benjamin Eikel winehq@eikel.org 2008-08-21 15:59:39 --- Thank you. I had that option in my old registry but I created a new .wine directory. Setting this option makes it possible to start the game with 1680x1050 resolution and highest settings.
The trees are still white. Maybe this is related to the texture formats that are not supported correctly. Furthermore I think some fauna (grass, flowers, etc.) is missing (see screenshot, both graphics settings set to "Hoch").